1396070245 has 4 divisors (see below), whose sum is σ = 1675284300. Its totient is φ = 1116856192.

The previous prime is 1396070197. The next prime is 1396070279. The reversal of 1396070245 is 5420706931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5420706931 = 541 ⋅10019791.

It can be written as a sum of positive squares in 2 ways, for example, as 743216644 + 652853601 = 27262^2 + 25551^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396070245 - 2¹³ = 1396062053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139607020 + ... + 139607029.

It is an arithmetic number, because the mean of its divisors is an integer number (418821075).

Almost surely, 2^1396070245 is an apocalyptic number.

It is an amenable number.

1396070245 is a deficient number, since it is larger than the sum of its proper divisors (279214055).

1396070245 is an equidigital number, since it uses as much as digits as its factorization.

1396070245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279214054.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1396070245 is about 37364.0234048744. The cubic root of 1396070245 is about 1117.6412532252.

The spelling of 1396070245 in words is "one billion, three hundred ninety-six million, seventy thousand, two hundred forty-five".